EP 2447246 B1 20160120 - Method for continuous production of dialkyl carbonate
Title (en)
Method for continuous production of dialkyl carbonate
Title (de)
Verfahren zur kontinuierlichen Herstellung von Dialkylcarbonat
Title (fr)
Procédé destiné à la fabrication continue de carbonate de dialkyle
Publication
Application
Priority
DE 102010042934 A 20101026
Abstract (en)
[origin: EP2447246A1] Purifying dialkyl carbonate compound (II) in at least one column, in presence of an alkylene oxide compound (V) and an alkyl alcohol compound (IV), is claimed. The temperature at the bottom of the column is 120-210[deg] C. Purifying dialkyl carbonate compound of formula (R2-O-C(=O)-O-R1) (II) in at least one column, in presence of an alkylene oxide compound of formula (V) and an alkyl alcohol compound of formula (R5-OH) (IV), is claimed. The temperature at the bottom of the column is 120-210[deg] C. R1, R2 : 1-6C alkyl (optionally branched and optionally substituted); R3, R4 : 1-4C alkyl, 2-4C alkenyl, 6-12C aryl (all optionally substituted) or H; and R5 : 1-4C alkyl. [Image].
IPC 8 full level
C07C 69/96 (2006.01); C07C 68/08 (2006.01)
CPC (source: EP KR US)
C07B 63/00 (2013.01 - KR); C07C 68/08 (2013.01 - EP KR US); C07C 69/96 (2013.01 - KR); Y02P 20/10 (2015.11 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2447246 A1 20120502; EP 2447246 B1 20160120; CN 102557951 A 20120711; CN 102557951 B 20160511; DE 102010042934 A1 20120426; ES 2565484 T3 20160405; JP 2012092101 A 20120517; JP 5912407 B2 20160427; KR 20120048477 A 20120515; RU 2011143045 A 20130427; SG 180137 A1 20120530; TW 201237027 A 20120916; US 2012101293 A1 20120426
DOCDB simple family (application)
EP 11186083 A 20111021; CN 201110403279 A 20111026; DE 102010042934 A 20101026; ES 11186083 T 20111021; JP 2011234021 A 20111025; KR 20110109146 A 20111025; RU 2011143045 A 20111025; SG 2011077633 A 20111021; TW 100138579 A 20111025; US 201113280438 A 20111025